Shock-loading apparatus.



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A TTOHNE YS No. 702,796. Patented .lune I7, |902.

A. C. HOUDYSHELL. I

I sHocK LOADING APPARATUS.

(Application filed Dec. 11, 1901.) (No Model.) 5 Sheets-Sheet 2.

' ATTORNEYS No. 702,796. Patented June I7, |902.`

A. c. HounYsHELL.

SHOCK LOADING APPARATUS.

(Application led Dec. 11, 1901.) (No Model.) 5 Sheets-sheet 3.

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No. 702,796. Patented lune I7, i902.

v A. C. HDUDYSHELL.

SHOCK LOADING APPARATUS.

Applicaticn iled Dec. 11, 1901.)- (No Model.) 5 Sheets-Sheet 4.

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S-HCK LOADING APPARATUS.

(Application led Dec. 11, 1901..)

5 Shets-Sheet 5.

(No Model.)

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UNTTED STATES,` PATENT OFFICE.

AARON CALVIN IIOIIDYSIIELL, OF TAMA, IOWA.

SHOCK-LOADING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 702,796, dated June 17,1902.

Application filed December l1, 1901. Serial No. 85,421. (No model.)

To all whom, L't may concern:

Be it known that I, AARON CALVIN HOUDY- sHELL, a citizen of the UnitedStates, and a resident of Tama, in the county of Tama and State of Iowa,have invented new and useful Improvements in Shock-Loading Apparatus, ofwhich the following is a full, clear, and exact description.

My invention relates to improvements in apparatus for loading shocks ofany kind of grain upon vehicles, such as a wagon, a sled, or any otherportable structure.

One object of the invention is the provision of a portable loadingapparatus in which the parts are constructed and arranged to'elevate andto deposit the load (which is in the form of a shook of grain) in avertical path, whereby the grain-shock may be stood up on end for thepurpose of transporting the same to a suitable place of storage.

A further object is to provide an improved hoisting mechanism, which isoperable by the advancing movement of the loading apparatus, such endbeing attained in connection with a secondary or transport vehicle orother point of resistance or by motion derived from a shaft or axle ofthe loading apparatus itself.

A further object is to equip the apparatus with a shiftable derrick forthe hoisting-cable, whereby the load may be conveniently deposited in atransport-vehicle.

A further object is to equip the derrick with a shiftable and yieldablecrane, which serves to ease the shock or jar on the cable and theapparatus when hoisting and depositing the load.

Further objects are'to provide means for conveniently and easilychanging the position of the derrick, to control the hoisting-cable, toguide the load in a proper path across the apparatus, to prevent theload during elevation from catching on the framework, and to simplifythe construction, as well as to promote the efficiency of the apparatus.

XVith these ends in view the invention consists in the novel combinationof mechanism and in the construction and arrangement of parts, whichwill be hereinafter fully described and claimed.

Reference is to be had to the accompanying drawings, forming a part ofthis specification,

in which similar characters of reference indicate corresponding parts inall the figures.

Figure l is a perspective view of a shockloading apparatus constructedin accordance with my invention. Fig. 2 is an inverted or bottom planView of the apparatus. Fig. 3 is a vertical transverse section showingthe shittable derrick adjusted to one position and with t-he hoistingmechanism in the -act of lifting the load. Fig. et is another transversesection representing the derrick shifted to its reversed position andwith the hoisting mechanism in the act of depositing the load. Fig. 5 isa detail transverse section taken in the plane of the dotted line of 5 5in Fig. 2, the dotted lines representing the winding-drum in itsadjusted inoperative position. Fig. 6 is a detail view of amanually-operable mechanism for adjusting the shiftable derrick. Fig. 7is a detail view of a modified form of the derrick. Fig. 8 is anelevation of a portable loading apparatus, illustrating certainmodifications in the construction of the apparatus represented by Figs.l to 7, inclusive; and Fig. 9 is a detail cross-section of a modifiedconstruction of the platform which forms a part of the portable wheeledtruck.

In carrying my invention int-o practice I employ a wheeled platform,which may be constructed as shown by the drawings, or the constructionthereof may be modied by the skilled constructor. As shown, the platform5 comprises a series of bed-rails 6, a plurality of transverse slats '7,and the top rails 8, the whole being secured together in any suitablemanner; but I reserve the right to employ `a metallic construction oftheplatform in which the rails are made of angle-bars 5, and the surface isformed by heavy wire or perforated sheet metal 7, as shown by Fig. 9.The platform may be mounted upon a running-gear of any suitablecharacter, but as shown by the drawings, however, the platform issupported by the front axle lO and the rear axle 1l. Said front axle ismounted near its end portions in axle-bearings l2, which are secured tothe bed-rails 6, and said axle is equipped with the groovedcarrying-wheels 13, the same being especially designed to preventslippage on the soil. Vith this front axle may be connected any suitableform of draft appli- IOO ance; but, as shown by Figs. 1 and 2, saiddraft appliance is in the form of a pole or tongue 14, and a bail 15,the latter being loosely fitted to the axle.

The rearaxle ll is surrounded loosely nearly throughout its length byasleeve or elongated bearing 16, which is supported by the boxes 17, butmay be made fast with a false bolster, or said boxes may be secured tothe bed-rails 6. This rear axle 1l is intended in one embodiment of theinvention to furnish the power for the operation of the hoistingmechanism and also for the operation of the derrick-shifting mechanism.The end portions of said axle l1 are extended beyond the sleeve 16 andthe boxes 17 for a suitable distance, and to this axle are firmlysecured the carrying and driving wheels 18, the same being adapted toimpart rotary motion to the axle on the advancement of the machine. Asshown more clearly by Fig. 2, these driving-wheels 13 are provided withgrooved peripheries forming spaced annular iianges that are notched orroughened in any suitable way, thus minimizing any tendency of thewheels to slip on the ground. The axle 11 is also provided witha drivingelement, which may be in the form of a sprocketwheel, although I haverepresented said driving element in Fig. 2 as consisting of a groovedpulley 1i), which is secured firmlynear one end portion of the axle nextto one of the driving-wheels 1S thereof.

I will now proceed to describe the construction of one form of thederrick, which is shiftably mounted upon the platform 5, preferably ator near the rear end thereof. For supporting this derrick in place lemploy a base-frame, which consists of the rails 2O and the side rails21,the whole being firmly secured together byanyapproved means. Therails 2O are disposed transversely across the platform 5, and the lengththereof is greater than the width of said platform, whereby the endportions of the base-frame extend beyond the platform, and saidbase-frame may be upheld or braced in position by suitable stays, whichmay be disposed at the sides of the platform and rest upon the ground,as indicated by the reference-letter a, Fig. S.

The derrick proper consists of non-exteu sible legs 23 24 and anextensible leg which is indicated in its entirety by the numeral 25,said series of legs being pivotally supported on the base-frame and theupper ends of the legs being connected together in a suitable way topermit the extensible leg to have a limited movement relative to thenon-extensible leg. The legs of the derrick (shown by Figs. 1, 3, and 4)are in the form of posts, and the legs 23 24 are pivoted, as at 26, tothe base-frame, said legs 23 24 converging in an upward direction andbeing secured firmly together at the free upper ends by means of a bail27, a spacing-block 28 being secured between said upper ends of the legs23 24. The extensible leg 25 in the construction shown by Figs. 1, 3,and 4 consists of the pivoted members 25* and the sliding member 25.Said pivoted members of the extensible leg are connected pivotally, asat 29, to the baseframe, and these members converge upwardly and areprovided with a guide-boxing 30, said guide-boxing serving to connectthe upper ends of the pivoted members of the leg. The sliding member 25bof the extensible leg is fitted at its upper end between the convergingends of the legs 23 24 and below the spacing-block 28, said slidable legmember 25b being pivoted, as at 3l, to the legs 23 24. The members 25aof the extensible leg are spaced within the guide-boxing 30, so as toreceive the lower portion of the slidable leg member 25", whereby saidslidable member is confined in operative relation to the pivotedmembers, and the parts composing the extensible leg are free to havemovement relative one to the other when the derrick is shifted from oneside of the platform to the other, as more clearly shown byrFigs. 3 and4.

l do not desire to restrict myself to the specific construction ormaterial employed in the derrick,'and l may employ metal in lieu of theposts. It is evident that metallic tubes or gas-pipes may be substitutedfor the posts which form the legs 23 24, said metallic tubes adapted tobe pivoted on the base-frame and being connected together at their upperends. The extensible leg 25 of the derrick may also be constructed frommetallic tubing in'the manner shown by Fig.'7 of the drawings, in whichthe numeral 32 designates the lower tubular member of the extensibleVleg, and 33 is the upper member of the leg. The lower member is adaptedto be pivotally supported on or connected to the base-frame by anysuitable means, and said lower member is of larger diameter than theupper member 33, the latter being slidably fitted in the lower memberand having pivotal connection at its upper end with the non-extensibleand pivoted legs of the derrick. The lower pivoted member of themetallic extensible leg (shown by Fig. 7) is provided with alongitudinal slot 34, in which is adapted to travel a pulley 35, that isattached to or mounted on the lower IOC IIO

extremity of the upper slidable member 33 of said extensible leg. Thelower tubular member of the metallic leg is provided at its upper endwith a metallic bar 36, on which are mounted the guide-sheaves 37, andaround these sheaves 37 and the pulley 35 is reeved an operating-cable3S, whereby the member 33 may be raised with relation to the member 32in order to lengthen the extensible leg, said leg being adapted to beshortened by the weight or gravity of the parts when the A cable 3S isslackened.

The mechanism for adjusting the shiftable derrick will be hereinafterdescribed in connection with power-driven operating devices.

30 designates suitable shaft-bearings which are secured firmly to theplatform or framework of the machine, preferably to the bedn rails 6 ata point adjacent to the driving-axle 11. In these shaft-bearings isjournaled a main shaft 40, arranged in a horizontal position on theunder side of the platform and parallel to the driving-axle 11. (SeeFig. 2.) As shown, the main shaft is mounted loosely in its bearings 39,so as to rotate freely therein and be capable of a limited endwisemovement, and this shaft 40 is intended to be driven or propelled fromthe axle 11 by intermediate gearing. As shown, the shaft 40 is providedwith a pulley 41, although a sprocket-wheel may be substituted therefor.Said pulley has a grooved periphery, and it is arranged in alinementwith the grooved pulley 19 on the driving-axle, Whereby an endless belt42 serves to operatively connect the pulleys 19 and 41 and to transmitmotion of the axle to the main shaft. The pulley 41 is shown by thedrawings as mounted loosely on the main shaft, to which it is adapted tobe clutched, and this pulley lies adjacent to one of the bed-rails 6 andto the winding-drum 43, the latter serving to actuate the hoisting-cable44. The drum 43 is made fast with the main shaft 40 by any suitablemeans, such as a key, and held from displacement off the end of theshaft by the nuts 45 or their equivalents, said drum being thus adaptedto partake of the rotary motion and the endless adjustment of the shaft40. The drum is provided with a clutch-pin 46, which 'is adapted to takeor fit into a socket 47, that is provided at one face of the loosepulley 41. (See Figs. 4 and 5.) The pulley 41 is confined between thewinding-drum 43 and one of the bed-rails 6 and when the shaft 40 ismoved to one position, as shown by Figs. 3 and 5, the clutch-pin 46enters the socket 47 in order to make the pulley 41 fast with the drum43 and shaft; but an endwise adj ustment of the shaft 40 to the positionshown by full lines in Fig. 4 and the dotted lines in Fig. 5 makes thedrum 43 withdraw the pin 46 from the pulley, thus allowing said pulleyto remain idle or run looselyon the shaft 40.

Any suitable means may be adopted for giving the endwise movement to theshaft 40; but in one embodiment of the invention (shown more clearly byFig. 2) said shaft is provided at one end with a grooved head 48, withwhich is loosely engaged the forked end 49 of a bell-crank lever 50, thelatter being fulcrumed on one of the bed-rails 6, as at 51. To the otherend of said bell-crank lever is connected a retracting-spring 52, whichis attached to the platform, and which serves to normally hold the shaft40 in a position for the winding-drum 43 to clutch the pulley 41 fast tothe shaft. To the same arm of the bell-crank having the spring 52 isconnected one end of a pitman or rod 53, the same extending beneath theplatform 5 and to the front end of the leg, said front end of the pitmanbeing connected loosely to the lower crank-arm 54 of an uprightadjusting-shaft 55, the latter being supported in a bracket 56, that isfastened to the frontend of the platform.

57 designates a shiftable crane, which is carried at the upper end ofthe derrick and is movable therewith, although it is capable of anindependent movement on a substantially vertical axis. This crane isyieldable or elastic, and it is shown by Figs. 1, 3, and 4 as made froma piece'of tempered metal, which is bent to an arched or curved form.This crane is provided at its free end with a guide 58, which is in theform of an eye or loop, and the other end of the crane has a swiveledconnection with the derrick, preferablyT by mounting said crane in thespacingblock 28. The pivoted end of said crane is shown by Figs. 3 and 4as having an enlarged footpiece 59, that is loosely iitted in a socketwhich is provided in the spacingblock 28, whereby the crane may turnfreely with relation to the derrick and the spacingblock, and at thesame time it is held securely in place on the derrick. This crane passesthrough the bail 27, which unites the legs 23 24 of the derrick, thusmaking the bail serve as a brace for the crane.

60 designates a grapple or fork adapted to engage with the load which itis desired to elevate, and this grapple maybe of any form approved bythe constructor, although I prefer to employa special form of grapplewhich lhave invented. The grapple may, however, be of the form familiarto those skilled in the art, the same consisting of pivoted membershaving suitable means through which the hoisting-cable 44 may be reeved.One end of this cable 44 is attached to the guide 58 of the crane, andthis cable takes the following course through the apparatus, or ratherthrough certain sheaves, to wit: From its attachment to the crane 57 thecable 44 is carried to and through a pulley-block on which is hung thegrapple 60. From thence the cable is carried upwardly and passes over asheave 61, that is attached by a hanger or bracket 62 to the swivelcrane57. From thence the cable 44 is carried over and in the rear of a sheave63, which is supported by a swiveled bracket 64 on the upper end of thederrick or the spacing-block 28 thereof. From thence the cable passes ina downward direction to and beneath a guide-sheave 65, which is attachedby a swiveled block 66 to one of the side rails 21 of the base-frame.From thence the cable passes horizontally across theplatform to and overthe guide-sheave 67, that is suspended by the swiveled hanger 68 fromthe cross-bar 21a of the base-frame, and finally said cable passes toand is coiled around the winding-drum 43.

I will now proceed to describe the 'poweractuating means for shiftingthe position of the derrick.

A spool 69 is loosely mounted on the main shaft 40, preferably at apoint between the bed-rails 6, and this spool is provided on one sidewith a clutch-face 70 and on itsy other IOO IIO

side with a grooved sleeve 71. (See Figs. 2, 3, and 4.) The clutch-faceof the looselymounted spoolis disposed opposite to a clutch member 72,that is made fast with the shaft 40, so as to rotate therewith and topartake of its endwise adjustment; but the spool 69 is prevented fromsliding with the shaft or with the clutch 72 by means of a detainingarm73 and the shipping-lever 74. The arm 73 is shown by Fig. 2 as attachedto the platform, as at 73, and as having engagement with that face ofthe spool having the clutchface 70. The shipping-lever 74 is mounted orfulcrumed, as at 74, on the under side of the platform, and this leveris provided with an angular arm 75 at its free end, to which arm isconnected the adj usting-rope 76, which passes across the platform andaround a guide-sheave 7 7,that is supported by a bracket 78 on one ofthe bed-rails 6. Said adjustingrope passes from the sheave 77 lengthwiseof and beneath the platform, so that it may be fastened at its free endto the lower crankarm 79 of an upright adj usting-shaft 80, which ismounted in a bracket 81 in the front end of the platform. (See Fig. 1.)The lever 74 is loosely connected at a point intermediate of its lengthwith the grooved sleeve 71 of the loose spool, and this lever may beoperated by the cord 76 and the shaft 80, so as to slide the spool 69 onthe shaft 40 and against the resistance of the yieldable arm 73, wherebythe clutch-face 70 of the spool may engage with the clutch-face 72, andthe spool may be made fast with the shaft 40, so as to be rotatedthereby.

A haulage-cable 82 is coiled around and fastened to the spool 69, fromwhich spool the haulage-cable is carried in an upward direction betweenthe guide-sheaves S3 and the platform. This cable is furthermore carriedupward and over the guide-sheave 84, which is suspended by a hanger 85from the guide-boxing 30 of the extensible leg, and finally this cable82 is carried in a downward direction and is attached at 86 to theslidable member 25b of the extensible leg. When the derrick occupies theposition shown by Fig. 3, the spool 69 remains loose on the shaft 40,and the slidable member 25) of the extensible leg is lowered Within thepivoted member 25:L of said leg. After the shock or load shall have beenraised a proper height above the ground the operator may adjust theshaft 8O and the lever 74, so as to throw the spool 69 into engagementwith the clutch 72, thus making the shaft 40 drive the spool 69 on themotion or advancement of the machine. The rotation of the spool 69 windsthe cable S2 thereon and draws upward on the slidable member 25b of theextensible leg, forming a part of the derrick, whereby the legs 23 24 ofthe derrick will be forced laterally and the derrick will be made toassume the position shown by Fig. 4. The derrick is thus shifted bypower connections with the main shaft, and the load which is suspendedfrom the derrick will be carried across the platform of the loadingapparatus.

The sliding member 25b of the extensible derrick-leg may be lowered bygravity or by the weight of the derrick; but to start the derrck inmotion in order to return it from the position shown by Fig. 4 and to'resume the position indicated by Fig. 3 I have provided a pull-cable 87,which is fastened, as at 88, to the slidable member 25b of thederrick-leg, said cable passing in a downward direction around theguide-sheave 89, that is mounted by a swiveled bracket 90 on one of therails 21 of the base-frame. This pull-cable thence extends in a downwarddirection through the platform and across the latter, said cable passingaround one of a pair of guide-sheaves 91, attached by brackets 92 to oneof the bed-rails 6. (See Figs. 2, 3, and 4.) From the sheave 91 thepull-cable 87 passes beneath the platform and in a forward direction toa sheave 93, that is supported at the front end of said platform, andfrom this sheave the pull-cable passes upwardly through the platform, asshown by Fig. 1, thus disposing the front end of the cable in positionto be grasped by the operator standing on the platform. The free end ofthis cable 87 may be fastened to the platform by any suitable means. Itis evident that the operator may pull on the cable 87, so as to hauldown on the slidable member 25b of the derrick-leg, thus pulling thelegs 23 24 of the derrick into position shown by Fig. 3.

In Fig. 6 of thedrawings I have shown another embodiment of means foradjusting the extensible leg of the derrick by hand-power. In thisfigure a windlass or drum 94 is joui'- naled in the guide-boxing 30 orthe members 25a of the extensible leg, and this windlassis provided witha suitable crank 95 or other means for rotating said windlass. Thecables 96 97 are coiled in opposite directions on the drum by thewindlass, so that the rota- ICO IOS

IXO

tion of the windlass in one direction will serve to coil one cablethereon and to unwind the other cable therefrom. The cable 96 extendsdownwardly from the windlass beneath the sheave 89 and thence extends inan upward direction for attachment to the slidable member of thederrick-leg, as at 96a. The other cable 97 extends upwardly from thewindlass over the sheave 84 and is attached at 97a to said slidablemember of the extensible leg. It will be seen that when the windlass isrotated in one direction the cable 96 is uncoiled from the windlass,whereas the cable 97 is coiled on the windlass for the purpose ofelevating the slidable member of the derrick-leg; but a reverse rotationof the windlass lowers said slidable member of the derrick-leg. Anysuitable means maybe provided, such as a pawl and ratchet, for lockingthe windlass against rotation.

By reference to Fig. 5 of the drawings it will be seen that a spring 98is interposed between the winding-drum 43 and the driving-pulley 41.This spring serves to force the pulley 41 away from the drum when theshaft 40 is moved eudwise in a direction to make the drum assume thedotted-line position, thus unclutching the pin 46 from the pulley 41 andpreventing said pulley from partaking of the slidable movement of theshaft 40 and the drum 43.

99 designates a series of curved guards, which are supported at thecorners of the base-frame that is placed transversely on the platform.These guards curve outwardly from the frame, and they prevent the loadfrom striking against or catching into the projecting parts of theframework.

The axle 11 may be made of any desired length, and I prefer to make thisaxle quite long in order that the driving-wheels 1S may be spread quitea distance apart, thus preventing the machine from, tipping over towardeither side when the load is unevenly distributed on the platform or thederrick.

A guide 100 is secured to one of the legs, as 23, of the derrick, `saidguide having a member which extends part Way around theI derrick andbeyond that side of the machine which is to receive the load. This armof the guide is disposed in the path of the load when the latter israised by the hoisting mechanism, and said arm serves to direct the loadin a proper path when the derrick is shifted from one position to theother.

Although I have shown and described an ordinary grapple, it will beunderstood that the grapple may be provided with a trip device which isadapted to be released by the pull-rope, so as to discharge the loadfrom the grapple at the proper time. I reserve the right to employ anysubstitute, such as a sling, for the grapple.

The operation may be described as follows: IVith the derrick in position(shown by Fig. 3) the shaft 40 is moved endwise, so as to disengage thewinding-drum 43 from the pulley 41, thus releasing the hoisting-cable 44and allowing the grapple to be drawn in a downward direction. Thegrapple is now adj usted to engage with the load, the shaft 40 havingbeen returned by the spring 9S to its normal position and the drum 43clutched to the pulley 41, leaving the spool 69 free from engagementwith the clutch 72. The loading apparatus is now moved or drawn in aforward direction by a team of horses, and alongside of the loading`apparatus is driven another vehicle which is designed to receive theshocks of grain, a portion of said vehicle being indicated at 101 inFig. 4. On the movement of the loading apparatus the drum 43 is drivenby the shaft 40, which is propelled by the axle 11, and the cable 44 iswound on said drum 43 and elevates the grapple 60 and the load. As theextensible leg of the dei-rick lies in a vertical position and as thecrane 57 projects laterally from one side of the loading apparatus,thehauling-cable 44 is adapted to raise the load in a perpendicular path.

After the load shall have been raised the required distance, preferablyto a point sufficient to clear the platform 5, the operator adjusts thelever 74 by turning the shaft 80, and the spool 69 is engaged with theclutch 72, so as to make said spool rotate with the shaft 40, wherebythe cable 82 is coiled on the spool and the member 25b of the extensiblederrick-leg is raised. This elevation of said member 25b forces the legs23 24 to turn on their pivots 26, and the derrick is made to assume theposition shown by Fig. 4, thus moving the suspended load over and acrossthe platform and causing the cable 44 to suspend the load beyond theopposite side of the platform and at a point clear of the machine. Thedrum 43 may now be unclutched from the pulley 41 Jby proper adjustmentof the shaft 40, and the cable 44 may uncoil from said drum sufficientlyto lower the grapple and deposit the load in the vehicle 101. The spool69 may now be unclutched from the shaft 40, and the cable 87 may bepulled by hand, so as to lower the slidable member 25b of thederrick-leg, thereby reversing the derrick and restoring the parts tothe position in Fig. 3 in order to resume the position heretoforedescribed.

Although I have shown and described a specific embodiment of means foroperating the hoisting-cable 44 on the adjustment of the machine, Idesire to say that under some circumstances the winding-drum 43 and itsassociated parts may be omitted. The hoisting-cable 44 may be led orconducted by suitable sheaves along the platformLso as to extend awayfrom the loading apparatus, and the distant end of this hoisting-cablemay be equipped with a hook b or any other suitable device, which isadapted to be engaged with a part of the vehicle 101, the latteraffording the xed point of resistance for the haulagecable when theloading apparatus is driven away from the vehicle, whereby the cable 44is operated so as to raisethe load. This method of operating the cable44 by the advancing movement of the loading apparatus may be resorted toif it is desired to simplify the mechanism of the loader, and thedescribed arrangement of parts is clearly indicated by Fig. 8.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. A portable loading apparatus comprising a wheeledtruck, a reversible derrick having the extensible and non-extensiblelegs pivoted to the truck and adapted to be shifted from side to sidethereof, means for extending or contracting the extensible leg andthereby imparting the reversible or shiftable adjustment to the derrick,and a hoisting mechanism mountedon the derrick and shiftable therewithfrom one side to the other of the truck.

2. A portable loading apparatus comprising a truck, a reversible derrickhaving its IOO members pivoted to the truck and shiftable from side toside thereof, means for giving the shiftable or reversible adjustment tosaid derrick, and a hoisting-cable guided on the derrick for adjustmenttherewith and operable by the advancing movement ot' the apparatus.

3. A portable loading apparatus comprising a truck, a derriok having itslegs pivoted to the truck, means for adjusting the derrick and shiftingit from one side to the other of the truck, an arm mounted on thederrick and shiftable therewith to project from either side of thetruck, and a hoisting-cable guided by the arm and operable by theadvancing movement of the apparatus.

4. A portable loading apparatus, comprising a wheeled truck, areversible derrick mounted thereon to swing from one side to the otherof the truck, a crank supported on the derrick to be shiftable therewithand also capable of an independent movement thereon, and ahoisting-cable operatively related to the crane and adapted to beoperated by the travel of the apparatus.

5. A portable loading apparatus provided with a reversible derrick, acrane carrying a sheave and mounted on the derrick to be adjustedtherewith and also capable of an independent movement thereon, and ahoistingcable attached at one end to said crane and reeved through thesheave thereon.

6. A portable loading apparatus, comprising a wheeled truck, a dei-rickreversibly mounted on said truck for adjustment from side to sidethereof,a yieldable or elastic cranearm mounted on said derrick foradjustment therewith, and a hoisting-cable operatively related to saidcrane-arm.

7. A loading apparatus comprising a wheeled truck, a derrick reversiblymounted on said truck to be shiftable to either side of the same andprovided at its upper end with a bearing, an arched crane swiveled insaid bearing of the derrick and adapted to project therefrom in eitherof the operative positions of the derrick, and a hoisting-cable guidedby said crane.

8. A portable loading apparatus, comprising a wheeled truck, a derrickreversibly mounted thereon, an arched yieldable cranearm swiveled on theupper portion of the derrick and adapted to be shifted therewith andcapable of a limited elastic movement under the strain of the load, anda hoisting-cable connected to and guided by said crane-arm.

9. In a loading apparatus, the combination of a portable truck, ashiftable derrick mounted thereon and adapted to assume an operative'position on either side of said truck, a swiveled crane mounted on thederrick to be shiftable therewith and arranged to project beyond oneside or the other of the platform, and a hoisting-cable actuated by theadvancing movement of the apparatus.

10. In a loading apparatus, the combinacoarse otally supportedthereon,an arched crane-arm 1 mounted at the head of the derrick foradjustment thereon and adapted to project beyond the truck in eitheradjusted position of said derrick, guide-sheaves attached to thecranearm and to the derriclr, an d ahoisting-cable attached to thecrane-arm and reeved through the guide-sheaves.

12. A portable loading apparatus, comprising a wheeled truck, a derrickreversibly mounted thereon to swing from side to side and having pivotedlegs and an extensible leg, devices actuated by the travel of the truckand connected operatively with the eX- tensible leg, whereby the membersof said leg may be positively moved with relation to one another, and ahoisting mechanism supported by and adjustable with said derriclr.

13. A portable loading apparatus, comprising a wheeled truck, a derrickreversibly mounted thereon and having pivoted legs and an exten sibleleg connected with said pivoted legs, a shaft adapted to be driven bythe travel of the truck, a winding-spool on said shaft, and connectionsbetween said extensible leg and said spool, whereby the derrick may beshifted in one direction by power devices and is adapted to be shiftedby gravity in the opposite direction.

14. A loading apparatus comprising a wheeled truck, a derrick reversiblymounted thereon and having an extensible leg, a shaft adapted to berotated by the travel of the truck, a winding-spool loose on said shaft,a clutch adapted to make the spool fast with said shaft, and a cableconnecting the extensible leg and said spool.

15. In a loading apparatus, the combination of a shiftable derrickhaving pivoted and eX- tensible legs, power connections for positivelyextending said legs, and a pull-cable having operative connection withone member of the extensible leg.

16. In a loading apparatus, the combination of a wheeled truck and aderrick thereon, of a hoisting-cable, an endwise-adjustable shaft on thetruck, a pulley mounted idly on said shaft and adapted to be driven fromone ot' the truck-wheels, a drum on said shaft, and means whereby theshaft and the drum may be thrown into and out of operation.

17. In aloading apparatus, the combination of a truck, a shiftablederrick, a main shaft, clutch-controlled devices driven from said shaftand operatively related to the derrick for shifting the latter, ahoisting-cable, and

clutch-controlled driven devices operatively IOO IIO

related to said shaft and independent of the l frame on said platform, aderriok mounted onderrick-shifting mechanism for operating the thebase-frame, guards arranged at the oorhoisting-cable. ners of thebase-frame, and a hoisting meeh- 18. In aloading apparatus, thecombination anisni supported by the derrick. of a truck, a shiftablederrick erected there- In testimony whereof I have signed my ou, ahoisting mechanism supported by said naine to this specification in thepresence of derriek, and a guard curved outwardly from l two subscribingWitnesses. and beyond said derrick and projecting into y the path of theload adapted to be elevated by AARON CALVIN HOUMSHELL' the hoistingmechanism.

19. A loading apparatus, comprising a Wheeled truck having a platform,and a baselVitnesses:

WILLIAM S. WILLETT, FRANK F. DAVIDSON.

